Disclosed is a communication network for aquatic vessels. The housing is preferably positioned at a first end of the first handle and the battery compartment is positioned at the opposite end of the first handle. The pedestals rest on structural longitudinal stringers laying port and starboard in the horizontal plane and fixed and supported by the ship’s hull structure. The ozone generation cell also has a first dielectric having a first passage-defining portion positioned between the first conductor and the first groove. The method includes switching the timing role of the second communication device based on the synchronization handshake. A digital speaker driving device includes a \u0394\u03a3 modulator, a post filter, s driving circuits, and a power supply circuit to supply power to the \u0394\u03a3 modulator, the post filter and the s driving elements and the s driving circuits are adapted to s digital signal terminals.